1. Specifications
Figure 1: Dimension of board
2. Notations
Input:
Output:
Indicators:
3. Operating principle
Figure 2: Operating principle of relay module
When control signal is low level, diode in U1 enables, U1 operates. U1 allows the current to pass through, the transistor Q1 is in saturation mode, and relay switches its status from “NC” to “NO”. LED LD1 turns on.
When control signal is high level, diode in U1 disables, U1 doesn’t operate. U1 permits the current to pass through, the transistor Q1 is in cutoff mode, and relay is in normal mode “NO”. LED LD1 turns off.
4. 3D model
You can see 3D model at: https://youtu.be/wD1_TaqAD2k
No | Designator | Comment | Description | Footprint | Quantity | Manufacturer 1 | Manufacturer Part Number 1 | Link |
---|---|---|---|---|---|---|---|---|
1 | C1, C2 | 0.1uF | 0.1uF 50V | C0805 | 2 | KEMET | C0805C104K5RACTU | https://amzn.to/3aUmz24 |
2 | CN1 | KF301-3 | CONN KF301 3POS 5.0MM | CNN 3x1 KF301 | 1 | https://amzn.to/393X4tD | ||
3 | D1 | SS34 | 3A 40V SS34 SMA | SMA | 1 | Multicomp | SS34A | https://amzn.to/2QbmNd4 |
4 | J1 | Jumper 5x1 | 5 Positions Header, Breakaway Connector 0.100" (2.54mm) Through Hole Gold | JP 5x1 MALE | 1 | Sullins | PRPC040SFAN-RC | https://amzn.to/2w2HwZG |
5 | LD1 | BLUE | LED 0805 BLUE | LED0805 BLUE | 1 | Kingbright | APT2012QBC/D | https://amzn.to/3aSwMfd |
6 | LD2 | RED | LED 0805 RED | LED0805 RED | 1 | Rohm | SML-210LTT86 | https://amzn.to/3aSwMfd |
7 | Q1 | C1815 | NPN 600mW, ECB | SOT23-3 | 1 | Microchip | MIC1815-20UY-TR | https://amzn.to/3aXbrkL |
8 | R1, R2 | 1K | 1 kOhms ±1% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film | R0805 | 2 | Yageo, Vishay Dale | RC0805FR-071KL, CRCW08051K00FKEA | https://amzn.to/3aWfNce |
9 | R3 | 5K6 | 5.6 kOhms ±1% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film | R0805 | 1 | Vishay | CRCW08055K60FKEA | https://amzn.to/3aRb4br |
10 | RL1 | 12V_10A | 5-Pin Relay | Relay SPDT | 1 | https://amzn.to/3aR4ykZ | ||
11 | U1 | PC817 | OptoPC817_5V_5mA PITCH | DIP4 | 1 | Everlight | EL817-G | https://amzn.to/2TL1uRH |
Name | Size | # Downloads |
---|---|---|
Relay Module.GBL | 2.35 kB | 67 |
Relay Module.GBS | 2.33 kB | 66 |
Relay Module.GKO | 543 B | 75 |
Relay Module.GM1 | 162 B | 70 |
Relay Module.GTL | 51.12 kB | 86 |
Relay Module.GTO | 145.94 kB | 73 |
Relay Module.GTP | 3.34 kB | 76 |
Relay Module.GTS | 5.51 kB | 72 |
Relay Module.TXT | 401 B | 53 |
Status Report.Txt | 300 B | 47 |